The Start() method

Start ();

Start receiving events about the current location. Applications should hook-up to "LocationUpdated" signal before calling this method.

The Stop() method

Stop ();

Stop receiving events about the current location.

The "LocationUpdated" signal

LocationUpdated (o old,
                 o new);

The signal is emitted every time the location changes. The client should set the DistanceThreshold property to control how often this signal is emitted.

The "Location" property

Location  readable   o

Current location as path to a org.freedesktop.GeoClue2.Location object. Please note that this property will be set to "/" (D-Bus equivalent of null) initially, until Geoclue finds user's location. You want to delay reading this property until your callback to "LocationUpdated" signal is called for the first time after starting the client.

The "DistanceThreshold" property

DistanceThreshold  readwrite  u

Contains the current distance threshold in meters. This value is used by the service when it gets new location info. If the distance moved is below the threshold, it won't emit the LocationUpdated signal. The default value is 0. When DistanceThreshold is zero, it always emits the signal.

The "TimeThreshold" property

TimeThreshold  readwrite  u

Contains the current time threshold in seconds. This value is used by the service when it gets new location info. If the time since the last update is below the threshold, it won't emit the LocationUpdated signal. The default value is 0. When TimeThreshold is zero, it always emits the signal.

The "DesktopId" property

DesktopId  readwrite  s

The desktop file id (the basename of the desktop file). This property must be set by applications for authorization to work.

The "RequestedAccuracyLevel" property

RequestedAccuracyLevel  readwrite  u

The level of accuracy requested by client, as GClueAccuracyLevel.

Please keep in mind that the actual accuracy of location information is dependent on available hardware on your machine, external resources and/or how much accuracy user agrees to be confortable with.

The "Active" property

Active  readable   b

If client is active, i-e started successfully using Start() and receiving location updates.

Please keep in mind that geoclue can at any time stop and start the client on user (agent) request. Applications that are interested in in these changes, should watch for changes in this property.